Abstract: This disclosure describes systems, methods, and devices related to channel estimation for coordinated access point (AP) transmissions. A device may identify of one or more access points associated with a coordinated basic service set. The device may determine to transmit one or more packets to a station device in coordination with the one or more access points. The device may determine one or more first training fields associated with one or more antennas of the device. The device may cause to send the one or more first training fields to the station device on one or more first communication links between the device and the station device.

Abstract: This disclosure describes systems, methods, and devices related to multi-user uplink channel sounding. A device may determine a channel sounding sequence with one or more access points (APs), wherein the channel sounding sequence comprises a null data packet announcement (NDPA) communicated with at least one of the one or more APs. The device may determine a first group of station devices (STAs) associated with a first basic service set (BSS). The device may cause to send a trigger frame to the first group of STAs to solicit an uplink NDP from each STA of the first group of STAs. The device may identify a first uplink NDP received from a first STA of the first group of STAs. The device may identify a second uplink NDP received from a second STA of a second group of STAs.

Abstract: A method for coordinating communication amongst a plurality of mobile devices, includes generating joint transmission information describing transmission information for use by the plurality of mobile devices in transmitting data related to a cooperative communication message to a destination node and instructing a mobile device to transmit a coordination message to the plurality of mobile devices, wherein the coordination message includes the joint transmission information.

Abstract: Methods and apparatus to coordinate multiple access point scheduling and transmission disclosed. An example apparatus includes transmit first instructions to a first station and a second station to perform a signal measurement protocol; responsive to obtaining a first primary association from the first station and a secondary association or a second primary association from the second station, transmit second instructions to the first station to provide first directional information and the second station to provide second directional information; a processor to, when the first directional information corresponds to a first value within a threshold range of a second value corresponding to the second directional information, group the first station and the second station; and the interface to transmit information corresponding to the group to a server to schedule communications between a first and second access point and the first station and the second station.

Abstract: In a dense wireless environment with spatial diversity and with multiple access points (APs) and multiple users (STAs), a common network controller may be used to determine which AP-STA combinations can operate simultaneously over the same channel without interfering with other AP-STA combinations. Each STA associates with each AP in a way that derives directionality, signal strength, array weight vectors, etc., for that AP and then provides that information to that AP. Each AP collects similar information from every STA in the network, and forwards the collected information to a Central Controller, who uses the combined information from all APs to determine which AP-STA combinations may operate simultaneously without causing interference with each other.

Abstract: A radio communication device includes a plurality of antenna arrays each configured to generate a steerable antenna beam according to a respective beamforming codeword, wherein each of the plurality of antenna arrays is configured to obtain the respective beamforming codeword from a single-antenna-array steering codebook that is reused by each of the plurality of antenna arrays, and a beamforming circuit configured to weight signals for the plurality of antenna arrays to coordinate the steerable antenna beams from a subset of the plurality of antenna arrays to form a combined antenna beam in a first steering direction.

Abstract: For example, a first wireless station may be configured to perform hybrid beamforming training including simultaneously communicating a first plurality of spatially multiplexed Synchronization Signals (SS) beamformed in a plurality of wide beam directions; and simultaneously communicating a second plurality of spatially multiplexed SS beamformed in a plurality of narrow beam directions, which correspond to one or more reported wide beam directions.

Abstract: A device is disclosed that may cause to send a network acquisition frame to a first device and a second device. The device may cause to send a first beamforming training frame to the first device and a second beamforming training frame to the second device. The device may determine a first set of RF chains, from a multi-antenna array, to establish a first connection on with the first device. The device may determine a first codebook to transmit to the first device, and a second codebook to transmit to the second device. The device may cause to send the first codebook to the first device, and the second codebook to the second device. The device may cause to send a first set of data to the first device on the primary channel, and a second set of data to the second device on the first set of channels.

Abstract: This disclosure describes systems, methods, and devices related to channel estimation for coordinated access point (AP) transmissions. A device may identify of one or more access points associated with a coordinated basic service set. The device may determine to transmit one or more packets to a station device in coordination with the one or more access points. The device may determine one or more first training fields associated with one or more antennas of the device. The device may cause to send the one or more first training fields to the station device on one or more first communication links between the device and the station device.

Abstract: Time Sensitive Networks (TSN) are networks that provide time synchronization and timeliness (deterministic latency and reliability/redundancy) guarantees to important or critical data flows. Traditionally, TSN applications have used wired connectivity (e.g., Ethernet TSN) for reliability. However, wiring has several limitations such as high maintenance cost, weight and limited mobility. Moreover, many TSN applications (e.g., Automotive and Industrial control) could benefit from enabling TSN-grade (wired) performance over a wireless network, i.e., a wireless TSN (WTSN) as discussed herein.

Abstract: A method of processing signals may include identifying a plurality of critical elements of a parameter vector based on one or more predefined criteria, wherein the parameter vector represents a relationship between the input signal vector and the output signal vector; identifying a reduced parameter update vector having a plurality of elements, wherein the elements are selected according to a criterion related to the relationship between the input signal vector and the output signal vector; updating the plurality of critical elements of the parameter vector using the reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has less elements than the parameter vector; and processing one or more signals associated with the input signal vector using the updated parameter vector.

Abstract: For example, a first wireless station may be configured to perform hybrid beamforming training including simultaneously communicating a first plurality of spatially multiplexed Synchronization Signals (SS) beamformed in a plurality of wide beam directions; and simultaneously communicating a second plurality of spatially multiplexed SS beamformed in a plurality of narrow beam directions, which correspond to one or more reported wide beam directions.

Abstract: A radio communication device includes a plurality of antenna arrays each configured to generate a steerable antenna beam according to a respective beamforming codeword, wherein each of the plurality of antenna arrays is configured to obtain the respective beamforming codeword from a single-antenna-array steering codebook that is reused by each of the plurality of antenna arrays, and a beamforming circuit configured to weight signals for the plurality of antenna arrays to coordinate the steerable antenna beams from a subset of the plurality of antenna arrays to form a combined antenna beam in a first steering direction.

Abstract: A method for self-interference cancellation in a wireless communication device. The wireless communication device has an estimator, a transmitter and a cancellation device. The estimator is configured to estimate a known signal received from a second wireless communication device when the second wireless communication device is utilized less than a predetermined threshold. The transmitter is configured to transmit within a coherence time of the estimated known signal, a predetermined signal. The cancellation device is configured to cancel the estimated known signal from a received signal.

Abstract: A method for a communication device with at least one antenna array composed of a plurality of antenna elements, each of the plurality of antenna elements coupled to a corresponding phase shifter of a plurality of phase shifters. The method includes determining an optimized beam forming weight for each of the plurality of phase shifters by maximizing an array gain of the antenna array for each steering angle of a plurality of pre-defined steering angles to generate a set of optimized beam forming weights for each steering angle; and configuring the plurality of phase shifters with the set of optimized beam forming weights for a selected steering angle to perform beam forming in direction of the selected steering angle.

Abstract: A technology that is operable to schedule data transfer for a multiple user multiple-input and multiple-output (MU-MIMO) communications network is disclosed. In one embodiment, an enhanced node B (eNode B) is configured with circuitry configured to receive a sounding signal from each of a plurality of user equipment (UEs). One or more major paths of the sounding signals from each of the plurality of UEs are determined. An angle of arrival (AoA) is determined that is associated with each of the one or more major paths. The plurality of UEs are grouped into one or more candidate MU-MIMO sets using the AoAs associated with each of the one or more major paths. Data transmissions are scheduled for one or more of the candidate UEs of the candidate MU-MIMO set on one or more of the major paths of each of the candidate UEs.

Abstract: A Spatial Multiple Access Uplink for Wireless LANs is generally described herein. A novel FD-MiMAC, protocol leverages full duplex functionality at the Access Point, can be incrementally deployed with current 802.11 Access Point and client devices, can be easily implemented by client devices in a distributed and contention based manner, and pairs users in uplink MU-MIMO to enhance system performance. A method for spatial multiple access uplink in a wireless local area network comprises announcing, by an Access Point (AP), its available remaining antenna capability, receiving, by the AP, a packet header frame transmitted by a winning client uplink contender, allocating, by the AP, uplink resources for the winning client uplink contender and immediately announcing its remaining antenna capability, and transmitting, by the AP, at the end of a winning client's transmission burst, an Acknowledge-to-All frame, whereby other clients may simultaneously restart contention for transmission of next frames.

Abstract: A method of processing signals may include identifying a plurality of critical elements of a parameter vector based on one or more predefined criteria, wherein the parameter vector represents a relationship between the input signal vector and the output signal vector; identifying a reduced parameter update vector having a plurality of elements, wherein the elements are selected according to a criterion related to the relationship between the input signal vector and the output signal vector; updating the plurality of critical elements of the parameter vector using the reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has less elements than the parameter vector; and processing one or more signals associated with the input signal vector using the updated parameter vector.

Abstract: A method of processing signals may include calculating a covariance matrix and a correlation vector based on an input signal vector and an output signal vector; identifying a plurality of critical elements of a parameter vector based on a predefined criteria, wherein the parameter vector describes a relationship between the input signal vector and the output signal vector; calculating a solution to a linear system to generate a reduced parameter update vector having a plurality of elements, wherein the linear system is based on the plurality of critical elements of the parameter vector, the covariance matrix, and the correlation vector; updating the plurality of critical elements of the parameter vector using the reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has less elements than the parameter vector; and processing one or more signals associated with the input signal vector using the updated parameter vector.

Abstract: A method of processing signals may include calculating a covariance matrix and a correlation vector based on an input signal vector and an output signal vector; identifying a plurality of critical elements of a parameter vector based on a predefined criteria, wherein the parameter vector describes a relationship between the input signal vector and the output signal vector; calculating a solution to a linear system to generate a reduced parameter update vector having a plurality of elements, wherein the linear system is based on the plurality of critical elements of the parameter vector, the covariance matrix, and the correlation vector; updating the plurality of critical elements of the parameter vector using the reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has less elements than the parameter vector; and processing one or more signals associated with the input signal vector using the updated parameter vector.